"The potential of the human body is immense. You can come out of some of the deepest, darkest holes if you keep pressi…"

"It's a hard, simple calculus: Run until you can't run anymore. Then run some more. Find a new source of energy and wi…"

"That summer I was nominated to go to the Team Birkie ski camp for the best high school cross-country skiers in the st…"

"I worried that my vegan diet might fail me. I worried that I'd run out of energy. I worried that the heat might prove…"

"Every single one of us possesses the strength to attempt something he isn't sure he can accomplish. It can be running…"

"The point was living with grace, decency, and attention to the world, and breaking free of the artificial constructs …"

"Ultrarunners — even the fiercest competitors — grow to love each other because we all love the same exercise in self-…"

"I'm healthier and I can run longer and faster because I eat a plant-based diet. But I don't preach to my carnivorous …"

"To run 100 miles and more is to bring the body to the point of breaking, to bring the mind to the point of destructio…"

"Rational assessments too often led to rational surrenders."